Universal metal bobbin



April 2l, 1925. 1,534,915

L. A. cADoRET UNIVERSAL METAL BOBBIN Filww 19 1924 Patented Apr. 2l, i925.

rar 2;

lnonis ALEXANDRE cADoEET, 0E EAWTUCKET, RHODE ISLAND.

f UNfvE'RsAL METAL BODBIN.

Y application ala May 1e, 1924. serial No. 714,457.

`To all whom. t may concern.' Be it known that I, Louis A. CADORET, a lcitizen `of the United States, residing at Pawtucket, `in the county of Providencev and`State of Rhode Island, have invented certain new and useful Improvements in Universal Metal Bobbins; and I do declare the following to be a full, clear, and eXact description of the invention, such as will enable others skilled in the art to which it appertains to make vand use the same.

,My-invention relates to improvements in bobbins for use in the shuttles ofl looms, and I prefer to term such bobbin a universal metal bobbin, as it is preferably constructed from sheetV metal and may be universally used in all Asorts of shuttles.

k:One object ofthe invention is to provide a. bobbin vwhich yis much 'smaller than the usiialbobbins,"due to its fthinsheet metal construction, which is -of great advantage, as it permits Va greater amount of thread to be carried 'and ythus saves a great deal of timefinthe operationo'f looms, by cutting down th'echanging of bobbins to. the minimum. v f

j Ar further objectv is to. provide a bobbin of the type setforth in which'means for engagement `with an ordinary bobbin holder I of a shuttle", and means for preventing slipping of the thread on the bobbin, are provided merely by stamping theV material from which y"such v'bobbin is constructed.

A ystill 'further aim is to provide Ia. bob,l b-in formed*v of' two 'sections and to secure va driving washer'in place by and between said sections, saidfwzisher coming into play whenthe bobbinis' being rotated during the thread winding operation.

Vitli'- the'foregoing and" minor objects in view,""`the "nvei'ition resides Qin the novel subject' jjmatter'- hereinafter described and claimed, the descriptionv being supplemented by thel accompanying drawing.

Figure lis aside elevation. p Figure 2 lis a vertical longitudinal sectional view. f

Figure 3 an enlarged longitudinal section showing more particularly the means for centering the bobbin on thespindle.

Figure 4 is a vertical transverse sectional View as indicated `loy line 4 4: of-Fig. 2.

Figures 5, 6 and 7 are fragmentary ele- "vations showing different provisions which may be made to permitthe bobbin to be held by different forms of bobbinv holders.

In the drawing above" briefly described, the numeral 1 designates a thin sheet metal vtube which forms the'sliank of the bobbin,

said tube being preferably formed by rolling a piece .of sheet metal upon itselfy and connecting its edges ,by dove-tail"tongues 2 on one edge, received in dove-tailnotches v 5% formed in the other edge (see Fig.'` 1)-; At intervals, the tube 1 is preferably stamped outwardly `to provide it with spaced circumferential ribs 4 which prevent Yslippage of thread thereon,` and one end portion') of said tube is preferably enlarged somewhat to a di ime-t'erjequal to or slightly in a plane with onel of the ribs'lli.` This enerably ference of the tube.

In order to center the tube 1 upon either a driving spindle or the spindle within 'a shuttle, circumferentially spaced portions of said tube are'stamped inwardly to'provicle spindle-engaging projections which are pref- 70. greater than the diameter of the tube,taken 3 erably in the form of longitudinally dis-"H l posed resilient tongues 7 Contacting with the outer sidey of* the flange 6, I have shown Ia driving washer 8 which is instrumental in engaging a driven@ spindle to 'rot-ate the bobbin when thread'is being woundupon it. A hollow, stamped vmetal head 9 which preferably tapers 'in-' y y,

wardly, surrounds the enlarged end portion 5 of the tube l and extends around the flangev 6 and washer 8, the outer end of. this head being bent inwardly as indicated at 10, to

contact lwith thel outer side of saidwasher and securely confinev it against .the'fiange 6.l .In Figs. 1 and 2, the head"9 is 'inwardly4 stamped as indicated atlll', providing an inward projection which abuts the inner lside i of the flange 6 and holds vtheliead against outward slidingon the tube, inward sliding of said headbeing prevented by the inwardly bent end 10 thereofwhichengagesthewash` er 8. The inwardly stamped/portion `11,

which is preferably continuous throughout the circumference of the head 9, also provides an external groove in said head for engagement with a shuttle holder in an or-.

ldinary bobbin. Between this groove and the inner end of the head, the latter is preferably stamped to provide it with a pluralit-y of' external circumferential shoulders l2 which prevent slippage. of the thread thereon. A

' The construction illustrated in Fig. v5 may be considered as the same as that above described, with the exception that three ex" ternal grooves l1a are provided in the head 9, any one of which or all of which may engage ashuttle holder within a bobbin. For a similar purpose, two circumferential grooves l1*l and a pluralityfof longitudinal grooves 13 are shown in Fig. v6, said grooves intersecting'each other. The grooves 13 are shown at one side of the bobbin but it is to be understood that the entire circimiference of the bobbin is provided with such grooves. In' Fig. 7, the bobbin head 9 is' shown of' greater length than in the other views, and it is provided with a pair of circumferen-v tial grooves 11b and with longitudinal grooves 13a throughout its circumference for engagement with suitable bobbin holding means in the shuttle, which means form no part of the presentinvention.

A bobbin constructed in or substantially in accordance with the present disclosure is easy to manufacture, inexpensive, exceptionally light and durable, is comparativelyV small in diameter and hence permits the carryingy of a large amount of thread,\and is unaffected by moisture, whereas the usual dye liquors and steam oftenused in treating the thread or yarn, will materially swell or expand the ordinary wooden bobbins.

Excellent results may be obtained from the details disclosed and they may therefore well be followed, but within the scope of the invention las claimed, numerous modifications may be madevand obviously any adequate materials may be used'in constructing the device. I have found the most practical -material to be sheet aluminunnas itis light and durable, may be easilyl stamped into shape, and s not subject to corrosion' or rusting.

I claim: 1.v A bobbin comprising an elongated tube having a transverse flange at one end, a

driving washer contacting with the outer4 side of said flange, and a hollow head se,

cured around one end portion of the tube and surrounding said washer,lsaid head having a portion enga ing the outer side of the washer to secure t e latter against the aforesaid flange.

2. A bobbin comprising'an elongated tube having a transverse flange at one end, a driving washer contacting withathe'fouter side of said flange, and a hollow head se- 'cured around one end portion of said tube and said washer, said head having an inwardly directed portion abutting the aforesaid flange to hold the head against outward movement along theA tube, said head also having `a second inwardly extending portion engaging the outer side of said washer to' secure the latterY in place and to hold the Vhead against movement along the tube in the other direction. 1

`3. A bobbin comprising an elongated tube having a lateral outstanding circumferential projection at one end, a hollow head secured around one end portion of 4said tube and surrounding said projection, said head having an inwardly stamped portion around its circumference formin fan inward projection abutting the inner si e bf'said first namedv projection, said inwardly stamped .portion also providing anexternalA-groove in the head for engagement withyth'e bobbin holder of a shuttle, anda driving'washer within the olter` end of said head secured against the outer side of said first named projection.

4. Av bobbin comprising an elongated tube having a lateral outstanding Bange at one end, a hollow head'secured around one end portion -of said tube and surrounding said flange, said head having an-inwardly stamped v portion around its circumference forming an inward projection abutting the inner side of said flange and an external groove for engagement with a bobbin holder of a shuttle, and a driving washer within the outer lend of said head abutting theouter side of said flange, said outer end ofthe head' being in: A wardly bent against the outer side of said l washer.

5. A -sheet metal bobbin having an enlarged head at one end, saidV head having inwardl stamped portions providing. ex

ternal"clrcurnzferential grooves 1n spaced relation and external 'longitudinal grooves' whose ends open into said circumferential grooves.

6L 1A structure as specified in claim 5, said headi having "additional inwardly stamped portions ,providing vlongitudinal grooves' from the outer end of said head to the first circumferential groove, the two sets of lon# gitudinal groovesbeing in alinement with each other. a In testimony whereof'r I have hereunto aihxed my signature.

LOUIS ALEXANDRE CADORET. 

